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Topic: Magnetic anomaly detector

	Magnetic anomaly detector - Wikipedia, the free encyclopedia
		A RNZAF P-3K Orion; the magnetic anomaly dectector protrudes from the tail to minimise interference from the aircraft's avionics.
		A magnetic anomaly detector (MAD) is a piece of equipment that is used to detect minute variations in the Earth's magnetic field.
		MAD gear was used by both Japanese and U.S. anti-submarine forces, either towed by ship or mounted in aircraft to detect shallowly submerged enemy submarines.
	en.wikipedia.org /wiki/Magnetic_anomaly_detector (636 words)

	Coil and Hall device circuit for sensing magnetic fields - Patent 4945306
		The Hall effect element is disposed in the magnetic field with the coil and the output signal of the element is proportional to the square of the intensity of the magnetic field.
		However, the sensitivity of a simple coil type detector may not be sufficient in detecting minute cracks in the range of 10 to 100 microinches, particularly considering circuit noise, less than ideal field flux contrast as the detector passes by the crack, flux leakage and the like.
		The same magnetic field which is sensed by the coil is also imposed on the Hall effect device and a resultant signal output voltage is produced by the circuit which is proportional to the square of the magnetic field intensity.
	www.freepatentsonline.com /4945306.html (3343 words)

	MAD
		Magnetic anomaly detector, a scientific instrument and anti-submarine warfare detection device
		Mad is a word used as a truncation of madness.
		Mad is also used to describe rabies in animals; typically, but not limited to, mad dog and Bovine spongiform encephalopathy or mad cow disease.
	www.brainyencyclopedia.com /encyclopedia/m/ma/mad.html (177 words)

	FarShores UFOs: Stan Gordon's Anomaly Log #5
		A point of note, the pulse rate superimposed on the magnetic wave from the MAD unit falls within the range both witnesses reported.
		When the original magnetic source signal is converted to a bit mapped graphic and displayed, the signal contains an 88 to 94 hertz component pulsating at between 8 to 14 pps.
		In conclusion, the similarities between the sound generated by the test and the actual magnetic field recorded by the MAD appear to more than coincidence, however the source of the magnetic disturbance is still under investigation.
	www.100megsfree4.com /farshores/sgordon5.htm (894 words)

	Defense Tech: Oz's Magnetic Sub-Hunter
		The Australian development, called MAGSAFE, uses the detection of changing magnetic fields to identify and monitor a moving submarine.
		The method, which is unique in that it captures 12 magnetic field-related data values per reading as opposed to the single number measured by a conventional magnetic anomaly detector (MAD) magnetometer, arises from research into new minerals exploration technologies that detect magnetic fields...
		In theory, the system means that pilots whose aircraft are fitted with MAGSAFE detectors will be able to measure the range, depth and bearing of a submarine, how fast it is going and if it is diving - all from one flyby.
	www.defensetech.org /archives/001587.html (217 words)

	Revised Rifts Torpedoes (Site not responding. Last check: 2007-10-23)
		MAD stands for Magnetic Anomaly Detector and detects magnetic fields to find its target.
		Decoys must produce a decoying magnetic field to be effective against this type of torpedo.
		One problem with the torpedo is the fact that magnetic fields can confuse the torpedoes in some cases.
	www.kitsune.addr.com /Rifts/Rifts-Equipment/Rifts_Torpedoes.htm (2703 words)

	The P-3 Orion
		Accordingly, the crewmembers use different systems of sensors (radar,sonobuoys, magnetic anomalies detectors) every of which ouputs data directly to the main computer that elaborates and visualizes them through many CRTs at the crewmember stations and in the pilot cockpit.
		Eliminating the need to perform mathematical calculations as well as the routine recordings, the computer has really changed the course of antisom missions, and perhaps the most important advantage is that the crew can devote exclusively the attention to the tactical situation of the moment.
		With regard to the discovery capabilities, the radar is the main sensor for monitoring of surface ships, while the sonobuoys are used for submarine hunting, in conjuction with the MAD (Magnetic Anomalies Detector) that reveals the variations of the earth magnetic field due to the presence of a submerged vessel or a wreckage.
	www.geocities.com /lucktam/awacs/orion/orion.htm (1561 words)

	CRUSHED ARCH Pages - UFO Cases (Site not responding. Last check: 2007-10-23)
		The cause of the polarity reversal midway through is unknown, however such a waveform could be generated if a magnetic source passed by either pole of the magnetic sensor.
		As it passed by, each pole would first attract then repel the field of the bias magnet which is a part of the sensor.
		The absence of the high frequency component reported cannot be used conclusively since, due to the sample rate of the MAD, this is well above the abibity of the instrument to record.
	www.westol.com /jbrown/ufo_arch.htm (2355 words)

	PAC 750XL - Wikipedia, the free encyclopedia
		The Cresco’s high lift wings enable the type to take a load of parachutists to 12,000 feet (3,700 m) and return to land in a quarter of an hour.
		One aircraft has been extensively modified for geo-survey work, being fitted with a Magnetic anomaly detector sting tail.
		Military and bush flying roles are also foreseen, and studies have been completed for ski and float conversions.
	en.wikipedia.org /wiki/PAC_750XL (398 words)

	SH-60 LAMPS MK III Seahawk - Military Aircraft
		The Navy's SH-60B Seahawk is an airborne platform based aboard cruisers, destroyers, and frigates and deploys sonobouys (sonic detectors) and torpedoes in an anti-submarine role.
		The sensor operator is an enlisted Sailor who operates the radar and magnetic anomaly detector (MAD) equipment, interprets acoustic data and performs SAR rescues.
		The magnetic anomaly detector (MAD) towed body and reeling machine are mounted on a faired structure that extends from the forward tail-cone transition section on the right side of the aircraft.
	www.fas.org /man/dod-101/sys/ac/sh-60.htm (2450 words)

	uboat.net - Fighting the U-boats - The Battle against the U-boat in the American Theater
		Among the devices that the group helped develop or test were the absolute altimeter, the magnetic anomaly detector (MAD), the radio sonic buoy, improved airborne depth charges, longrange navigation, and airborne microwave radar.
		The magnetic anomaly detector (MAD) operated by sensing a change in the magnetic field of the earth, an anomaly that could be produced by the steel hull of a submarine.
		Combined with the use of a radio sonic buoy to listen for the sounds of a submarine, the MAD permitted an intensive search with a high probability of success.
	uboat.net /allies/documents/usaaf_asw3.htm (2457 words)

	P-3 Orion Antisubmarine Warfare Plane (Site not responding. Last check: 2007-10-23)
		The Navy's P-3 Orion antisubmarine warfare plane (shown here as a prototype model in December 1960) is deployed from coastal bases to locate and if necessary destroy enemy submarines.
		Its unusual tail houses a magnetic anomaly detector, to detect large metallic objects underwater.
		In addition to conventional armament, the aircraft could carry two B57 nuclear depth bombs (these weapons were retired in 1993).
	www.brook.edu /fp/projects/NUCWCOST/P-3.htm (63 words)

	Lostopedia (Site not responding. Last check: 2007-10-23)
		Magnetic field: Magnetism is a natural force on moving charges.
		A compass is designed to react to a magnetic field and point toward a magnetic pole.
		The hatch appears to be surrounded by a magnetic field.
	www.igetlost.com /lostopedia.asp (17880 words)

	Fluxgate Patents
		This is a much simpler case than that of an aircraft flying a Magnetic Anomaly Detector (MAD), a sub or a buoy looking for a sub.
		Magnetic anomaly and MAD are key words for this type of sensor when in a moving platform.
		3903610 Apparatus for Measuring Magnetic Field Direction - 288 kHz divided to 400 Hz, triangle drive, the SIN adn COS coil utputs are "in resolver format", 2nd harmonic is bandpass filtered, phase detector as part of a PLL.
	www.pacificsites.com /~brooke/FGPat.shtml (4599 words)

	Untitled Document
		The aircraft is capable of carrying 15 sonobuoys, 2 MK 46/50 Torpedoes and 8 MK 25 smoke floats.
		It is also equipped with a Magnetic Anomaly Detector (MAD) and a surface radar (To detect surfaced and snorkeling submarines).
		The SH-2D and SH-2F models relayed Sonobuoy information to their ship or other aircraft for advanced processing and were used in a "pouncer" role for quick localization and prosecution of suspected submarine contacts.
	seaspritecentral.50megs.com /ASW.htm (131 words)

	Avro Shackleton - The Black Vault Encyclopedia Project (Site not responding. Last check: 2007-10-23)
		The first test flight was in March 1949 and front-line aircraft were delivered to Coastal Command in April 1951 and had their operational debut during the Suez Crisis.
		In the ASW role, the Shackleton carried both types of sonobuoy, ESM, a diesel fume detection system and for a short time an unreliable magnetic anomaly detector (MAD) sytem.
		Weapons were nine bombs, or three torpedoes or depth-charges, and 20 mm cannon.
	www.blackvault.com /wiki/index.php/Avro_Shackleton (739 words)

	VPNAVY - VP-5 History Summary Page - VP Patrol Squadron
		The "Mad Foxes" were awarded the Battle Efficiency "E" in 1951, 1952 and 1958.
		In 1991, the "Mad Foxes" deployed to Rota, Spain with extended detachments to Lajes, Sigonella and Souda Bay in direct support of Operations Desert Shield and Desert Storm.
		The Mad Foxes were the first to deploy P-3C AIP-equipped assets over Kosovo and Bosnia, bringing the first true all weather day and night overland reconnaissance capability to the theater.
	www.vpnavy.com /vp5_1942.html (1157 words)

	TWA Flight 800: WEAPONS SYSTEMS
		The extension on the tail houses part of the Magnetic Anomaly Detector, or MAD, a system that detects submerged submarines by local fluctuations of the Earth's magnetic field caused by the presence of the submarine's metal hull.
		The avionics system is integrated by a general purpose digital computer that supports all of the tactical displays, monitors and automatically launches ordnance, while providing flight information to the pilots.
		The avionics system is integrated by a general purpose digital computer that supports all of the tactical displays, monitors and automatically launches ordnance and provides flight information to the pilots.
	www.whatreallyhappened.com /RANCHO/CRASH/TWA/SYS_P3.html (630 words)

	Navy Minesweeper Aids Search for Marquette Wrecks
		A second magnetic target detected by the sub hunters roughly corresponded to the assumed location of the lost ore carrier Henry B. Smith.
		Just as she disappeared into the gloom, witnesses saw her turn to the north, perhaps to seek shelter from the rebuilding storm in the lee of the Keweenaw Peninsula.
		Once the search pattern was completed, the minesweeper's crew re-acquired the target, stationed the ship a short distance away, and deployed their AN/SLQ-48 Mine Neutralization Vehicle (MNV), a remotely operated vehicle equipped with mine neutralization equipment as well as, most importantly for this mission, a video camera.
	www.portup.com /~dfount/navy.htm (632 words)

	R.E.E.F. Aircraft Hard point Pods & Ordnance Loads
		The sonar equipment has a unit that can be lower into water while hovering or flying up to 30 mph (26 knots/ 48 km) per hour.
		Often for Anti Submarine Warfare (ASW) operation, this pod is carried with a MAD pod
		M.A.D. Pod: This is special pod that has the ability to detect metal objects.
	members.tripod.com /~The_Kitsune/Rifts-Equipment/REEF_Missile_Pods.htm (1142 words)

	This Lockheed (Site not responding. Last check: 2007-10-23)
		This Lockheed-built long range anti-submarine and patrol aircraft was flown by the US Navy Reserve’s Patrol Squadron (VP) 93 from 1976 until it was decommissioned in 1994.
		The long probe on the tail of the aircraft is a Magnetic Anomaly Detector that could detect fluctuations in the earth’s gravitational force caused by submerged submarines.
		The P-3 was also equipped with sophisticated sensors and sonabuoys that could hear submarines under water.
	www.selfridgeairmuseum.org /p3page.htm (70 words)

	SH-2 Seasprite
		Equipment of the SH-2G includes an AQS-18A dipping sonar, an ARR-84 sonobuoy receiver, AQS magnetic anomaly detector, LN-66 radar and AKT-22 data link.
		Tactical data from the radar, Electronic Support Measures (ESM), acoustic processors, and Magnetic Anomaly Detector (MAD) are integrated through the MIL-STD 1553B data bus and displayed on the AN/ASN-150 tactical navigation set.
		The SH-2F was equipped with search radar, electronic support measures, magnetic anomaly detectors and an acoustic data link.
	www.globalsecurity.org /military/systems/aircraft/sh-2.htm (1313 words)

	Br 1150 Atlantique
		It is fitted with antiship-missiles, ASW-weapons, sonar buoys and a magnetic anomaly detector [MAD].
		This aircraft is remarkable for being the only maritime patrol aeroplane in the world specially designed for its mission and not just a derivative of a commercial civil aircraft.
		A total of 28 ATL 2s have been ordered for the French Navy; 23 of these were in service as of 1999.
	www.globalsecurity.org /military/world/europe/atlantique.htm (788 words)

	Aerospaceweb.org \| Aircraft Museum - S-3 Viking
		The S-3 was built to provide anti-submarine protection for US aircraft carrier battle groups.
		Although having a relatively large wingspan, the Viking is an incredibly compact aircraft housing four crewman, state-of-the-art data-processing computers, a magnetic-anomaly detector, a high-resolution search radar, a FLIR system, and 60 sonobuoys.
		Most of the Vikings built were later upgraded to the S-3B standard with improved ESM equipment, a new sonobuoy system, and the ability to carry two Harpoon anti-ship missiles.
	www.aerospaceweb.org /aircraft/maritime/s3 (218 words)

	ROCN Hughes 500MD/ASW Defender
		These helicopters feature a Bendix RDR-1300 search radar housed in a nose radome offset to the port side.
		One towed ASQ-81C(V)2 magnetic anomaly detector (MAD) can be carried on the starboard fuselage.
		The skids are heightened to provide extra clearance for one or two Mk44 or Mk46 torpedos and/or smoke markers carried underneath the fuselage, although normally only one torpedo is carried to maximize endurance and range.
	www.taiwanairpower.org /navy/500md.html (494 words)

	Boeing Frontiers Online
		The 757's interior volume would contain a Tactical Mission Center with new-technology sensors and future growth potential.
		The only noticeable exterior differences from the commercial 757 airframe were a slightly elongated nose and an aft Magnetic Anomaly Detector boom to detect submarines underwater.
		Lockheed's P-7A proposal was essentially an upgraded P-3 with improved engines with high-technology propellers, survivability and maintainability enhancements and state-of-art avionics.
	www.boeing.com /news/frontiers/archive/2005/september/i_history.html (349 words)

	Naval Technology - KA-27/28 and KA-29 Helix Naval Helicopters (Site not responding. Last check: 2007-10-23)
		The mission computer carries out automatic control, stabilisation and guidance of the helicopter to the mission areas to attack targets.
		The helicopter also has a magnetic anomaly detector (MAD) and an airborne receiver to detect and guide the helicopter towards sonar buoy radio transmissions.
		The export version Ka-28 also has an IFF (interrogation friend or foe) system.
	www.naval-technology.com /projects/ka (819 words)

	Ilyushin Il-38 May
		The operational crew is believed to be nine personnel, which includes a tactical coordinator, sensor operators, a MAD (Magnetic Anomaly Detector) operator and observers.
		It encompasses a new synthetic-aperture/inverse-synthetic-aperture radar located in a canoe fairing on the belly, a high-resolution FLIR (forward-looking infra-red) sensor, a LLTV (low-light television) camera, a new ESM (electronic-support-measures) system and a new MAD (magnetic anomaly detector) system in the aft section of the aircraft.
		The IL-38s will also be fitted with radio-frequency and infrared sensors, as well as decoys.
	www.bharat-rakshak.com /NAVY/IL-38.html (609 words)

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